<template>
  <div class="adminCategory">
    <a-layout>
      <a-layout-content
          :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }"
      >

        <p class="adminCategoryHeader">
          <a-form layout="inline" :model="param">
            <a-form-item>
              <a-button  @click="handleQuery()" shape="round">
                <redo-outlined />
              </a-button>
            </a-form-item>
            <a-form-item>
              <a-button  @click="add()" shape="round">
                <plus-circle-outlined />
                扩充分类
              </a-button>
            </a-form-item>
          </a-form>
        </p>

        <a-table
            :data-source="level1"
            :columns="columns"
            :row-key="record => record.id"
            :loading="loading"
            :pagination="false"
        >

          <template #cover="{ text: cover }">
            <img v-if="cover" :src="cover" alt="avatar" />
          </template>

          <template v-slot:action="{ text, record }">
            <a-space size="small">
              <a-button  @click="edit(record)" shape="round">
                <edit-outlined />
                编辑
              </a-button>
              <a-popconfirm
                  title="确定要删除这个分类吗？"
                  ok-text="是的"
                  cancel-text="不是"
                  @confirm="handleDelete(record.id)"
              >
                <a-button shape="round">
                  <delete-outlined />
                  删除
                </a-button>
              </a-popconfirm>
            </a-space>
          </template>
        </a-table>
      </a-layout-content>
    </a-layout>
  </div>
  <a-modal
      title="分类表单"
      v-model:visible="modalVisible"
      :confirm-loading="modalLoading"
      @ok="handleModalOk"
  >
    <a-form :model="category" :label-col="{ span: 6 }" :wrapper-col="{ span: 18 }">

      <a-form-item label="名称">
        <a-input v-model:value="category.name" />
      </a-form-item>
      <a-form-item label="父分类">
        <a-select
            ref="select"
            v-model:value="category.parent"
        >
          <a-select-option value="0">
            无
          </a-select-option>
          <a-select-option v-for="c in level1" :key="c.id" :value="c.id" :disabled="category.id === c.id">
            {{ c.name }}
          </a-select-option>
        </a-select>

      </a-form-item>
      <a-form-item label="顺序">
        <a-input v-model:value="category.sort"/>
      </a-form-item>

    </a-form>
  </a-modal>
</template>

<script lang="ts">
import { defineComponent, onMounted,ref } from 'vue';
import axios from 'axios';
import { message } from "ant-design-vue";
import {Tool} from "@/util/tool";

export default defineComponent({
  name:'AdminCategory',
  setup() {
    // 定义响应式变量searchCategory
    const param = ref();
    param.value={};
    const categorys = ref();
    const loading = ref(false);

    const columns = [
      {
        title: '名称',
        dataIndex: 'name',
      },
      {
        title: '分类id',
        dataIndex: 'id',
      },
      {
        title: '父id',
        dataIndex: 'parent',
        key: 'parent',
      },
      {
        title: '分类排序',
        dataIndex: 'sort',
      },
      {
        title: '',
        key: 'action',
        slots: {customRender: 'action'}
      }
    ];

    /**
     * 一级分类树，children属性就是二级分类
     * [{
     *   id: "",
     *   name: "",
     *   children: [{
     *     id: "",
     *     name: "",
     *   }]
     * }]
     */
    const level1 = ref(); // 一级分类树，children属性就是二级分类

    /**
     * 数据查询,前后端分页同步
     **/
    const handleQuery = () => {
      loading.value = true;
      // 如果不清空现有数据，则编辑保存重新加载数据后，再点编辑，则列表显示的还是编辑前的数据
      level1.value = [];
      axios.get("/category/all").then((response) =>{
        console.log(1111)
        loading.value=false;
        const data = response.data;
        if (data.success){
          categorys.value= data.content;
          console.log("原始数组：", categorys.value);

          level1.value = [];
          level1.value = Tool.array2Tree(categorys.value, 0);
          console.log("树形结构：", level1);
        }else {
          message.error(data.message);
        }
      });
    };


    // -------表单--------
    const category= ref({});
    const modalVisible = ref(false);
    const modalLoading = ref(false);
    const handleModalOk = () => {
      // 点击ok先显示loading效果
      modalLoading.value = true;

      axios.post("/category/save", category.value).then((response) => {

        modalLoading.value = false;
        // 当post请求发送以后，值返回时执行以下操作
        const data = response.data;
        if (data.success){ // data = CommonResp,所以有success属性
          // 如果保存成功，取消loading效果，关闭对话框

          modalVisible.value = false;

          // 关闭对话框后重新加载列表
          handleQuery()
        }else {
          message.error(data.message);
        }

      });
    };


    // 编辑功能，点击编辑按钮时触发的事件
    const edit = (record:any) => {
      // 显示模态框
      modalVisible.value = true;
      category.value = record
    };

    // 新增功能，点击新增按钮时触发的事件
    const add = () => {
      modalVisible.value = true;
      category.value = {}
    };

    // 删除功能，点击删除按钮时触发的事件
    const handleDelete = (id:number) =>{
      axios.delete("/category/delete/"+ id).then((response) => {

        // 当delete请求发送以后，值返回时执行以下操作
        const data = response.data;
        if (data.success){ // data = CommonResp,所以有success属性
          // 如果删除成功，直接重新加载列表
          handleQuery()
        }
      });
    };

    /**
     * 根据name查询电子书信息
     */
    // const handleQueryByName = (params: any) => {
    //   loading.value = true;
    //   categorys.value = [];
    //   axios.get("/category/search", {
    //     params: {
    //       page: params.page,
    //       size: params.size,
    //       name: searchCategory.value.name
    //     }
    //   }).then((response) => {
    //
    //     loading.value = false;
    //     const data = response.data;
    //     if (data.success) {
    //       categorys.value = data.content.list;
    //       // 重置分页按钮
    //       pagination.value.current = params.page;
    //       pagination.value.total = data.content.total;
    //     } else {
    //       message.error(data.message);
    //     }
    //
    //   })
    // };
    onMounted(()=>{
      handleQuery();
    })

    return{
      // 表格用到的返回参数
      // categorys,
      level1,
      columns,
      loading,


      // 新增和编辑
      edit,
      add,

      // 表单用到的返回参数
      category,
      modalVisible,
      modalLoading,
      handleModalOk,

      handleDelete,

      //搜索功能用到的返回参数
      handleQuery,
      param
    }
  },
});
</script>

<style scoped>
.adminCategory{
  text-align: center;
  margin: 15px 200px 10px;
}
.adminCategoryHeader{
  margin: 15px 425px 10px;
}
</style>